/*
 *    This file is part of ReadonlyREST.
 *
 *    ReadonlyREST is free software: you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation, either version 3 of the License, or
 *    (at your option) any later version.
 *
 *    ReadonlyREST is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with ReadonlyREST.  If not, see http://www.gnu.org/licenses/
 */
package tech.beshu.ror.utils

import tech.beshu.ror.boot.RorInstance

import java.util.concurrent.atomic.AtomicReference
import java.util.function.Supplier

object RorInstanceSupplier extends Supplier[Option[RorInstance]]{
  private val rorInstanceAtomicReference = new AtomicReference(Option.empty[RorInstance])

  override def get(): Option[RorInstance] = rorInstanceAtomicReference.get()

  def update(rorInstance: RorInstance): Unit = {
    rorInstanceAtomicReference.set(Some(rorInstance))
  }
}
